package com.kaifamiao.using;

public class Passiveness {

    public static void main(String[] args) {
        System.out.println( "访问duration属于被动使用" );
        System.out.println( Lion.duration );
        System.out.println( "访问begin属于主动使用" );
        System.out.println( Lion.begin );
    }

}
